Interesting that so many people think you are angry - I accept that you are not, we know ourselves best.
What i don't really get any sense of, is what you want at this point in time. Do you want your husband back? If not, and the marriage wasn't that great, then surely it is better to find that out now than later? Or do you want your husband to change? Real change takes a lot of time to work through.
Is there anything your husband could do? I get along much better with my xh post divorce as he trundles merrily through his MLC. Or remains stuck. Hard to know at this point.
As to dating: I found friends to do stuff with in unlikely places. Old friends stepped up to the mark, new friends emerged. You do not have to date to find people to do stuff with, except perhaps romantic dinners!
I am sorry you feel helpless and hopeless though. That is such a painful way to feel. You are of course a capable, intelligent and strong minded woman.
It is never too late for anything. Just believe me and others on this. We could all be wrong, but i do not think we are.